[RE-wrenches] hueRe: Parts List For AC Couple Disconnect

[Dave Angelini Offgrid Solar]

We ran the field test XW pro here AC coupled to test function and
programming in AC coupling. Used a Schneider grid inverter and it all
worked fine. A good set-up for a large grid or micro grid install. 

I
still do not get why someone with a medium/small offgrid (less than 14KW or
so) system would want to add all of the complexity and get so little in
return? Love the picture of the AGM ! Respect it please! If you get a
lightning strike nearby and the failsafe fails! Just sounds like you are
giving the client a headache to me. Convince me why for offgrid please?

Dave Angelini Offgrid Solar
"we go where powerlines
don't"
http://members.sti.net/offgridsolar/ [1]
e-mail offgridsolar at sti.net
[2]
text 209 813 0060

On Sun, 3 Nov 2019 20:44:51 -0700, Ray  wrote:   


Here's a pic of an AGM battery bank that went into thermal run away. Core
temp was at over 200 F. If you over charge a sealed battery for long
enough, with high enough charge current and don't have adequate
cooling...... 

 Hi mark,   Not quite.   The BB will keep charging
unregulated until the battery voltage reaches high battery voltage cutout
set point.       jay   peltz power   

  On Nov 3, 2019, at 5:05 PM, Mark
Frye  wrote: 

OK, great, I am really getting the message, but I would like
to understand, if for some reason the BB does not raise the frequency or
the GT does not response, or the BB fails to stop on HBCO the ultimate
consequence is unregulated charging of the battery until failure? On
11/3/2019 4:56 PM, Glenn Burt wrote:   Indeed, as long as nothing goes
wrong with the BB inverters ability to shift the freq, and the GT's ability
to follow the UL 1741 requirements, nothing bad should happen. However it
is best practice to have a secondary method in place to ensure the GT drops
out of the picture. That most commonly is ensured with an interposing relay
controlled by the BB inverters knowledge of the battery charge, or a
secondary device that performs the measurement.    -Glenn Sent from my
'smart'phone, so please excuse typos and spelling errors.       ------
Original me         

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